FORR · Forrester Research, Inc.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on June 1, 2026 of the restricted stock units awarded to the reporting person on June 1, 2025. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On June 2, 2025, the reporting person was granted 17,056 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments on June 1, 2026, June 1, 2027, June 1, 2028 and June 1, 2029.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on June 1, 2026 of the restricted stock units awarded to the reporting person on June 3, 2024. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On June 3, 2024, the reporting person was granted 19,651 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments on June 1, 2025, June 1, 2026, June 1, 2027 and June 1, 2028.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on June 1, 2026 of the restricted stock units awarded to the reporting person on June 2, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

The securities awarded on May 12, 2026 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal and consecutive installments. The first tranche will vest on September 1, 2026, with an equal number of shares vesting on each of December 1, 2026 and March 1, 2027, and the balance of the shares vesting on June 1, 2027.

The securities awarded on May 12, 2026 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal and consecutive installments. The first tranche will vest on September 1, 2026, with an equal number of shares vesting on each of December 1, 2026 and March 1, 2027, and the balance of the shares vesting on June 1, 2027.

The securities awarded on May 12, 2026 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal and consecutive installments. The first tranche will vest on September 1, 2026, with an equal number of shares vesting on each of December 1, 2026 and March 1, 2027, and the balance of the shares vesting on June 1, 2027.

The securities awarded on May 12, 2026 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal and consecutive installments. The first tranche will vest on September 1, 2026, with an equal number of shares vesting on each of December 1, 2026 and March 1, 2027, and the balance of the shares vesting on June 1, 2027.

The securities awarded on May 12, 2026 are in the form of Restricted Stock Units issued pursuant to the Forrester Research, Inc. Amended and Restated Equity Incentive Plan that entitle the reporting person, upon vesting, to receive one share of common stock per Restricted Stock Unit. The Restricted Stock Units will vest and convert into common stock in four equal and consecutive installments. The first tranche will vest on September 1, 2026, with an equal number of shares vesting on each of December 1, 2026 and March 1, 2027, and the balance of the shares vesting on June 1, 2027.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 15, 2026, the reporting person was granted 6,800 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments on April 1, 2027, April 1, 2028, April 1, 2029 and April 1, 2030.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 12,820 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 23,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2025. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 20,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

On April 1, 2026, the reporting person was granted 50,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 20,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2026, the reporting person was granted 25,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 5,341 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2026, the reporting person was granted 25,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 5,760 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 3,946 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 33,333 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 1,920 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 15,602 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 24,003 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2026, the reporting person was granted 25,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 16,802 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2024, the reporting person was granted 3,975 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 25,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The award includes a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the award.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2026, the reporting person was granted 30,000 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents the conversion, upon vesting, of restricted stock units into common stock.

Each Restricted Stock Unit represents the right to receive, following vesting, one share of Forrester Research, Inc. common stock.

On April 1, 2025, the reporting person was granted 8,760 Restricted Stock Units that vest and convert into common stock in four equal and consecutive installments beginning on the first anniversary of the grant date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.

Represents shares withheld by the Issuer to satisfy tax withholding obligations upon the vesting on April 1, 2026 of the restricted stock units awarded to the reporting person on April 1, 2024 and April 1, 2025. The awards include a provision for the withholding of shares by the Issuer to satisfy withholding taxes due as a result of the vesting of the awards.